1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
*****************************************************************************
*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* ***************************************************************************
*
*/
#include "SBPLATFORM.h"
VOID
ReadMEM (
IN UINT32 Address,
IN UINT8 OpFlag,
IN VOID* Value
)
{
OpFlag = OpFlag & 0x7f;
switch ( OpFlag ) {
case AccWidthUint8:
*((UINT8*)Value) = *((UINT8*) ((UINTN)Address));
break;
case AccWidthUint16:
//*((UINT16*)Value) = *((UINT16*) ((UINTN)Address)); //gcc break strict-aliasing rules
*((UINT8*)Value) = *((UINT8*) ((UINTN)Address));
*((UINT8*)Value + 1) = *((UINT8*)((UINTN)Address) + 1);
break;
case AccWidthUint32:
*((UINT32*)Value) = *((UINT32*) ((UINTN)Address));
break;
}
}
VOID
WriteMEM (
IN UINT32 Address,
IN UINT8 OpFlag,
IN VOID* Value
)
{
OpFlag = OpFlag & 0x7f;
switch ( OpFlag ) {
case AccWidthUint8 :
*((UINT8*) ((UINTN)Address)) = *((UINT8*)Value);
break;
case AccWidthUint16:
//*((UINT16*) ((UINTN)Address)) = *((UINT16*)Value); //gcc break strict-aliasing rules
*((UINT8*)((UINTN)Address)) = *((UINT8*)Value);
*((UINT8*)((UINTN)Address) + 1) = *((UINT8*)Value + 1);
break;
case AccWidthUint32:
*((UINT32*) ((UINTN)Address)) = *((UINT32*)Value);
break;
}
}
VOID
RWMEM (
IN UINT32 Address,
IN UINT8 OpFlag,
IN UINT32 Mask,
IN UINT32 Data
)
{
UINT32 Result;
ReadMEM (Address, OpFlag, &Result);
Result = (Result & Mask) | Data;
WriteMEM (Address, OpFlag, &Result);
}
|
